From nobody Sun Sep 28 15:57:27 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1759052976554765.4241629987301; Sun, 28 Sep 2025 02:49:36 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v2o10-0001ft-Nh; Sun, 28 Sep 2025 05:48:22 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v2o0x-0001er-PA for qemu-devel@nongnu.org; Sun, 28 Sep 2025 05:48:19 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v2o0h-0006UF-BZ for qemu-devel@nongnu.org; Sun, 28 Sep 2025 05:48:19 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8DxP9NMBNlohM4PAA--.32517S3; Sun, 28 Sep 2025 17:47:56 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by front1 (Coremail) with SMTP id qMiowJDx_8NCBNloMpa5AA--.63673S10; Sun, 28 Sep 2025 17:47:55 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: Bibo Mao Subject: [PULL v2 08/11] hw/loongarch: Implement dintc set irq Date: Sun, 28 Sep 2025 17:24:05 +0800 Message-Id: <20250928092408.948035-9-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20250928092408.948035-1-gaosong@loongson.cn> References: <20250928092408.948035-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJDx_8NCBNloMpa5AA--.63673S10 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1759052977493116600 Content-Type: text/plain; charset="utf-8" Implement dintc set irq and update CSR_MSGIS. Reviewed-by: Bibo Mao Signed-off-by: Song Gao Message-ID: <20250916122109.749813-9-gaosong@loongson.cn> --- hw/intc/loongarch_dintc.c | 32 ++++++++++++++++++++++++++++++-- 1 file changed, 30 insertions(+), 2 deletions(-) diff --git a/hw/intc/loongarch_dintc.c b/hw/intc/loongarch_dintc.c index 598c666ec6..962fe10bf8 100644 --- a/hw/intc/loongarch_dintc.c +++ b/hw/intc/loongarch_dintc.c @@ -16,6 +16,14 @@ #include "migration/vmstate.h" #include "trace.h" #include "hw/qdev-properties.h" +#include "target/loongarch/cpu.h" +#include "qemu/error-report.h" +#include "system/hw_accel.h" + +/* msg addr field */ +FIELD(MSG_ADDR, IRQ_NUM, 4, 8) +FIELD(MSG_ADDR, CPU_NUM, 12, 8) +FIELD(MSG_ADDR, FIX, 28, 12) =20 static uint64_t loongarch_dintc_mem_read(void *opaque, hwaddr addr, unsigned size) @@ -23,13 +31,33 @@ static uint64_t loongarch_dintc_mem_read(void *opaque, return 0; } =20 +static void do_set_vcpu_dintc_irq(CPUState *cs, run_on_cpu_data data) +{ + int irq =3D data.host_int; + CPULoongArchState *env; + + env =3D &LOONGARCH_CPU(cs)->env; + cpu_synchronize_state(cs); + set_bit(irq, (unsigned long *)&env->CSR_MSGIS); +} + static void loongarch_dintc_mem_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { - return; + int irq_num, cpu_num =3D 0; + LoongArchDINTCState *s =3D LOONGARCH_DINTC(opaque); + uint64_t msg_addr =3D addr + VIRT_DINTC_BASE; + CPUState *cs; + + cpu_num =3D FIELD_EX64(msg_addr, MSG_ADDR, CPU_NUM); + cs =3D cpu_by_arch_id(cpu_num); + irq_num =3D FIELD_EX64(msg_addr, MSG_ADDR, IRQ_NUM); + + async_run_on_cpu(cs, do_set_vcpu_dintc_irq, + RUN_ON_CPU_HOST_INT(irq_num)); + qemu_set_irq(s->cpu[cpu_num].parent_irq, 1); } =20 - static const MemoryRegionOps loongarch_dintc_ops =3D { .read =3D loongarch_dintc_mem_read, .write =3D loongarch_dintc_mem_write, --=20 2.47.0